Heel-compressing machine



T. LUND. HEEL- COMPRESSING MACHINE.

,APPLICATION FILED JUNEZG. 1919.

1,886,639 Patented Aug. 9,1921.

T 1619 9- i4 10 I. m I 19E,

ERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Application filed June 26,

Toa ll whom it may concern: I

' Be it known that I, THOMAS 'LUND, a citizen of the United States,residing at Beverly, in the county of Essex and State of Massachusetts,have invented certain Improvements in Heel-Compressing Machines,

of which the following description, in connection Wltlltll accompanyingdrawings, is

a specification, like reference character-son the drawings indlcatmglike parts in the several figures.

This invention relates to machines for I operating upon boot and shoeparts, and

- more particularly to the means for feeding or moving the boot or shoepart to position for treatment'by the machine.

I The efficiency of such machines and their productive capacity dependto some extent upon the amount of time necessary to feed the shoe partor article to the position it is to occupy when the machine takes chargeof it for'treatment. It is, therefore, desirable to feed or move theboot or shoe part to treating position "by mechanical means, preferablyautomatic in character, and to economize, as far as possible," theamount of time occupied in placing the part or article in finalpositionrelative to the portions of the machine by which it is to be treated.This necessitates a rapid movement of the automatic feeding means and avery close time relation between the operative movement of the feedingmeans and the movement of the power operated means by which the shoepart or article is to be treated and 'intofoperative relation to whichthe shoe part or article is moved by the feeding means. This conditionis especlally con spicuouswhen the machine is run at high ment may becaused by variations of inertia or momentum deranging slightly the timerelation between the feeding means and the operating means and, sincethis time relation is necessarily very close, a slight variationthereinmay involve such serious consequences as failure of the shoe part orSpecification of Letters Patent.

' THOMAS Lorin, or BEVERLY, mnssnonosn'rms, .sssreno'n ronnrrnnSHOE-MACHIN- I-IEEL-COMPRESSING MACHINE.

Patented Aug. .9, 19921.

1919. Serial No. 306,868.

article to be'introduced into proper treating position, by reason of itstriking a portion of the operating means.

When any contingency occurs which causes failure properly .to locate theboot or i cart tarts "err aria.

shoe part for treatment,-notonlyisthe productive capacity of the machineimpaired, but the boot orshoe part, or, it may be, a

portion of the machine .itself, is liable to 'lIlJHlY. It is desirable,therefore, to have the boot or'shoe part advance toward treatingposition rapidly to economize time consumption and to bring it to restin proper position relative to the treating means withoutthe occurrenceof the objectionable contingencies above noted. A y

An important feature of the present invention, therefore, consists intheprovision of improved means for so controlling the action of the feedingmeans as to insure against the occurrence of the difliculties abovedescribed. Thls feature of the invention is capable of a variety ofspecific embodiments, but thedesired result is preferably accomplishedby giving the feeding means .a relatively rapid feeding movement untilthe boot or shoe part is in proximity to .itsfinal position, whereuponmeans are automatically rendered operative to cause a momentaryretardationor pause in the feeding movement until a collisionwbetweenthe work and the operating means becomes impossible and the work may bedeposited with certainty and accuracy in proper operating position.

This characteristic feature of the present invention may beadvantageously employed in a variety of machines for treating boot andshoe parts, such, for instance, as heels, top-lifts, counter blanks, andthe like, where the part or article is to be treated after having beenfed or moved to a position relative'to the treating means. In someInachines for treating boot and shoe parts, the present invention hasspecial and additional adaptation, and, while generally applicable toany of the machines above indicated, it will hereinafter be described inconnection with acompressing machine for compressing or molding partsof'boots or shoes, such,

for instance, as heels and top-lifts. A machine of this general type isshown and described in the United States Patent to Charles L. Allen No.776,823, dated December 6, 1904, wherein the blanks to becompressed areplaced between pressure exerting members which are relatively movabletoward and from each other.

In the machine of the patent, one of the pressure exerting membersconslsts of a mold comprising side and breast portions and'a top liftplate which arecarried by a head movable toward or from a fixed heelseat die forming theother pressure exerting member,and, duringthe-separat ng movetures of'the present invention may be adv In recentyears the height and styles of heels have become more and more extreme,;particularly heels for womens shoes, andcoinpressing machines which wereheretofore adapted to successfully compressi heels of usual height, havebecome. unsuitedv to 'treat "heels ofthe more recent height and Y 5style, because. duringthe feed movement of suchhigh heels into positlon,between'the pressure exerting'members, they are liable to strike'theside of one of the compressing members and fail to reachcompressingposli tion. In amachine such as that ofthe Allen 3 patent,forIinstance, where the inward or feed movement of the heel takes placeduring the separating movement of'the pressure exerting members, theadvancingrearuptends upwardly to a considerably greater wardly extendingedge of the :heel is liable to. contact with the upper die or follo'werbefore the separating movement of the pres sure exerting members hasbeen sufficient 'i to permit theintroduction ofsuchextreme heel betweenthem. This fact may be evi'-. dent where any heelof unusual height isfed toward heel compressing position, but is particularly manifest wherethe heel is 'of such extreme height and style as the Louis or Cuban?heel, in which the heel seat portion toward the rearof the heel ex-vdegree than at thebreast of the heel.

An important feature of the invention in this connection, therefore,consists of means for retarding the feed movement of the feedmg meansuntll theseparatlng movement of Y --the pressure exerting means has beensuffif cient to receive the heel between them.

i This retardation in the feed movement'may be'effected by causing themomentary slow up Y of the feed movement as the heel ap- 7 by --amomentary proaches compressing position, or itmay be ment.

Another important feature of the inven- This maz pause in the feedmove-- tion consists in a retarding device which is effective duringthefeed movement yof" the heel toward treating position. 'This action ofthe retarding device may be variously contrived to suit condition ofuse,but in the present lnstance 1s caused by the relative separatingmovement of the pressure exertv ing means-. f V Y Other features of theinvention and novel combinations of ,parts in addition to .those'abovenoted will be hereinafter described in connection with one goodpractical form' of the invention and then definitely setlforth by theclaims. I a In the drawings chine being shown as is necessary to makeshowing one position of parts constituting one form of'retarding m IS i3 is a view similar to that of Fig.2 with the parts of the retardingmeansshown in another position; and V,

Fig. 4 is a similar view showing the parts of the retarding meansin;still another'position. a Y i The invention is shown, in thepresent VFigure l is a verticalsection from front to rear of a machine embodylngthe present 1nvent1on,-;.only,sufficlent of the entire maclear theassociation of the invention therefor p i h Fig. 2 p is an enlargeddetached detail instance, asembodied in a heel compressing machine, suchas disclosed by the above mentioned Allenpatent, and it will. therefore, not be necessary to describe in detail the various features of themachlnewhich arenot directly concerned with thepresent invention,because these are fully setiforth in the-Allen patent to which reference;Inay be had. The construction disclosed by the Allen patent isselectedfor the embodiment of the present invention as iamatter of convenlence1n describing-and malnngclear the construction and mode of. operation ofthe invention,v itself and its combination with' compression-members ofa compressingmachine, but it is tobe understood, of course, that theinvention may be associated and combined With-any machine wheretheconditions require a retardation or pause-in the feeding movement ofthe-feeding means.

' The main frame of the machine in the' drawings is indicated at 1,which maybe of suitable character to support the operating parts, or asshown. in the Allenpatent mentioned. Mounted for reciprocating movementin suitable guideways formed in the sides of the rigid frame is a head2, with which is combined one of thepressure exerting members. The head2 is given reciprocating movement by toggles 3, fl connected bya link tosuitable actuating means. 7'

The compression members, 'inthe present instance of the invention,comprise the heel seat die or follower 6 (Fig. 1) which is rigidlysupported by the overhead arch of the main machine frame, and areciprocating heel mold which may comprise s1de members 7 a breast plate8 and a top llft plate 9, the latter being relatively movable of the dieformed by the side and breast members as fully explained in the Allenpatent.

The top lift plate 9 is provided with or mounted upon a support 10 whichmay be actuated at times to move the top lift plate relative to the moldmembers by means of an arm 11, substantially as fully described in theAllen patent above mentioned. A spring actuated limiting stop 12 engagesa longitudinal recess in the support 10 to limit the reciprocatingmovement of the top lift plate under the actuation'of the arm 11.

The reciprocating head 2 has a forward extension 13 (Fig. 1) whichconstitutes a table or support for a feedingmechanism. The feeding andejecting mechanism may comprise among its parts the slide 14 movable onsuitable guideways provided in the upper portion of the table 13.Suitable heel blank clamping arms may be carried by the slide 14,therear ends of which clamping arms at 15 (Fig. 1) constitute shoulders orpushers to contact with and heel from the top lift plate and out of themachine as indicated in Fig. 1, as the slide is moved to position a heelblank for the action of the pressure members, in which respects theparts may be similar to those fully described in the Allen patent.

The slide 14 has a tail piece 16 pivotally connected to it at 17, andheld in normal working position as indicated in Fig. 1 by a latch 18.Projecting from the tail piece 16'i's a lug 19 carrying a pin 20 whichengages the bifurcated end 21 of the arm 22 of a bell-crank leverpivoted at 23 on the projection or table 18, the construction being suchthat by manipulating the latch 18 the tail piece may be lifted todisengage the pin 20 from the bifurcated end 21 to permit the feed slide14 to be removed from the machine when desired. The other arm 24 of thebell-crank is provided with a pin or roll 25 which engages an elongatedslot 26 in a link or rod 27 which extends through av sleeve 28 pivotedto the machine frame 1 at 29; A spring 30 within the sleeve 28 normallyacts against the shoulder 81 of the rod 27 "to force the rodlongitudinally outward relative to the sleeve, 28.

The parts thus far described may be substantially as in the Allen patentabove mentioned, the slot 26 forming a lost motion connection betweenthe rod 27 and the bellcrank 22, 24. As described in the Allen patent,during the first part of the rise of the reciprocating. head 2, the rollor pin 25 travels in the slot 26, and the bellcrank lever is notactuated to movethe feeding push a compressed rise of the head 2, theroll or pin 25 comes to the end of the slot 26, and therefore, thebell-crank lever 22, 24 is actuated to move the slide in a direction toretract the heel, blank holder or feeding device in a direction awayfrom the mold. When the head 2 begins to descend after a compressingopera tion, the roll or pin 25 again travels the length of the slot 26without'actuating the bell-crank 22, 24, or causing the slide 14 to bemoved, thus giving ample time for the. workman to insert a heel blank inthe feeder or clamp; but after the roll or pin 25 reaches the lower endof the slot 26, the bell-crank lever is actuated to move the slide 14 topresent the blank to the pressure exerting means and to e ect apreviously compressed mg members move relative in a direction ofseparation, and in the treatment of heels of ordinary height, themechanism herein before described and also described in the patent toAllen, effectively serves to feed such heels into compressing position.Where the heels, however, are of unusual height, the feeding movement ofthe feeding means or slide is liable to carry such extra high heeltoward compressing position before the pressure exerting members haveseparated sufficiently to receive such heel, the result being that theheel to be compressed is either injured or thrown out ofthe machinealtogether. Inany event, it strikes one of the pressure exertingmembers, the upper or die member 6, in the present instance, and failsto reach compressing position. The present invention, therefore,contemplates the provision of means for retarding the feeding movementof the feeding means or causing a pause in its feeding movement topermit the pressure exerting members to suihciently separate toaccomodate the extra high heel between them.

In the illustrated machine and as fully described in the Allen patent,the top lift plate 9 is raised during the first portion of the descentof the reciprocating head, or in other words, there is a differentialmovement between the side and breastmembers of the mold and top liftplate as the pressure exerting members separate. This relative movement,as stated in the patent, is sufficient to bring the upper surface of thetop lift plate level with the upper surface of the side members of themold, and this raises the compressed heel which is supported on the toplift plate into the path of the enlargement or shoulder 15 of thefeeding and ejecting mechanism heretofore described, by means of whichthe compressed end portion 45 of the dog, 35

heel is ejected from the machine, and the ,.The retardation or pause inthe feeding movement of the feeding means or slide may be variouslyeffected, but in the present in stance of theflinvention, a dog 32 ispivot. ally connected with the reciprocating head 2 by means of a pin 33passing through the 7 dog 32 and suitable ears or supports 34 projectingfrom a back plate 35 adapted to be secured to the reciprocating head 2.The dog 32 is'normallyheld in an inclined position as indicated in Figs.2 and 3, by means ofa spring 36, one end of which is connect ed tothedog at 37, and the other end to the backing plate 35 at 38, theconstruction being such that the tendency of the spring 36 is tonormally hold the dog 32 with its stop face. 39 hearing against thebacking plate, as indicated in Fig. 2, but permitting the dog 32 toyield downwardly in response to any force tendingto move it clockwise,in Fig. 2.

Pivotally mounted on the main frame of the machine is arocking memberwhich constitutes apart of the retarding device, in the present instanceof the invention. The rocking member comprises an arm '40 pivotallymounted at 41 to the lugs 42 pro jecting from a bracket 43 secured tothe main frame 1. The rocking arm' 4O carries a roll 44 adapted to beengaged bythe rounded as the latter moves downwardly during theseparation of the pressure exerting members. The other arm of the rocker40 is pivotally connected at .46 with a link 47 which is itself jointedto a collar 48 fixed to the rod 27, the con struction being such thatupon rocking movement of the rocker 4O clockwise, viewing Fig. 1 the rod27 will be forced downwardly against the tension of its spring 30, andas such action is incident to the downward movement of the mold whichnormally imparts feeding movement to the feeding means, it follows thatthe feeding means will be retarded or caused to pause in its feedingmovement when the rocker 40 is rocked -as above described.

The dog 32 may be connected to the mold carrying or reciprocating head 2in any position desired to cause the actuation of the rocker 40 at apredetermined time relative tothe feed movement of the feeding means, soas to cause the retardation or pause in the feedingmeans at any part ofthe feedmg movement thereof. In the illustrated instance of theinvention, however, the re- 60 tardationor pause in the feeding movementis effected between the commencement "and ending of the feeding movementof the feed mg means, so that the dog 32 after acting upon the rocker 40in the manner hereinbe foredescribed, to effect the desired retarda tionor pause the feeding means, passes" downwardly past the roll 44 on therocker,

whereupon the roll'44 under the actuation of the spring 30 1).ti1ts.,;the' dog asindicated in Fig. 4, and rides over thefdog withoutinfluencing the actionof the" feed ing means as the re'ciprocatinghead'2moves upwardly.

It may be desirable at .ttime's to alter time of the retardation orpausein the-feedmg movement of .the feeding means, and

one good form of mechanism .to this "end consists-of a threadedadjusting member'49,

connecting the link 47ffw'ith the rocker' lQ' asindicated in Fig. 1."This means'affords; the desired adjustment,fbut obviously the desiredalteration inthe pause of'the feed movement-,might be. effected byjustments. 1 s, v s The operation of. the machine will be clear from theconstruction-and function of parts.

as hereinbefore described, and if ;it be as' sumed thata heel ha'sijustbeen compressed and the pressure exerting members are mo vf ing in adirection of relative separatiomthetop lift plateand mold members withwhich it is associated, will be relatively moved,

finally reaching the positionas indicated in Fig. 1, where the mold hasabout reached its lowest position. At thisftime the surface ofthetop'lift plate 9 will be approximately in the plane of the upperportions of the side and breast mold members to present the compressedheel for ejection frond-the malchine by the shoulders or abutments l5and the introduction of an uncompressed blank to compressing position.As the pressure exerting members move in a direction of separation. tothe position hereinbefore stated, the, feeding 'means' will be actuatedby the described movement of the reciprocating head 2. As the dog- 32which is secured to the head 2, moves over the roll 44'on the rocker 40(Fig. 2) it will effect movementv of the rocker clockwise from thepositionindicated in Fig. 2 to that indicated in Fig. 3, thereby causinga retardation or momentary pause in, the feeding .movement of the.feeding means. As

- the head 2 continues to descend, the roll 44 in- Fig. 3 will passabove the surface45 of the dog and, under the influence of the spring 3O(Fig. 1) will cause thedogto swinginto. the position indicated in -Fig.4, thereby permitting the rocker 40 to assume -substan-' tially its,normal position, andcause .the

feeding movement of the feeding means to effect full movement of theheelfto compressing position between pressure exerting members. Asthehead 2 rises from the p05 sition in Fig. 4, which. issubstantially'indicative of its lowest position, the roll 44 will rideidly over the dog 32. without stantially affecting the retreating orbackward movement of the feeding means.

By adjustment of the dog in its relative location with respect to therocker, or by adjustment of the connection between the rocker and rod27, the retardation or pause in the feeding movement of the feedingmeans may be variously changed to different portions of the cycle of thefeeding movement.

What is claimed is 1. In a compressing machine, the combination ofopposed compression members movable relatively toward and from eachother to compress and release a blank, blank feeding means, andadditional means acting through the blank feeding means during therelative separating movement of the compression members to delay theinsertion of a blank between said members.

2. In a heel compressing machine, the combination of compression membersmovable relatively toward and from each other to compress and release aheel, heel feeding means, means for imparting a normal feed movement tothe heel feeding means, and

means acting during the separating moVe-.

ment of the compression members for modifying the normal feed movementof the feeding means to permit high heels to be placed between thecompression members.

3. In a machine of the class described, the combination of compressionmembers movable relatively toward and from each other to compress andrelease a blank, a blank feeding slide, means for operating the slide,and means effective during an intermediate portion of the separatingmovement of the compression members for causing a retardation in thenormal feed movement of the slide.

4. In a machine of the class described, the combination of a relativelymovable die and mold to compress and release a blank, a blank feedingslide, means for yieldingly moving the slide to feed a blank, and meansacting through the yielding means for modifying the feed movement of theslide during the separation of the die and mold.

5. In a compressing machine, the combination of a die, a reciprocatingmold,

means for feeding a blank between the die and mold, and means actuatedduring the retreat of the mold from the die for retarding the feedingmovement of the feeding means. I

6. In a compressing machine, the combination of a die, a reciprocatingmold, means for feeding a blank between the die and mold, and meansoperated by movement of the mold as it retreats from the die forchanging the feeding movement of the feeding means. Y

In a machine of the class described, the combination of pressureexerting members movable toward and from each other to compress andrelease a blank, blank feeding means, ment of one of the pressureexerting mem bers for retarding the feeding movement of the feedingmeans during the separating movement of the pressure exerting members topermit high as well as relatively low blanks to be fed between thepressure exerting members.

8. In a heel compressing machine, the combination of heel feeding andejecting means, and means for operating the feeding and ejecting means,lncluding a retarding device acting during a part of the feeding andejecting movement to retard the normal feeding movement.

9. In a heel compressing machine, the combination of heel feeding andejecting means, means for operating the feeding and ejecting means, anda retarding device operative during movement of the feeding and ejectingmeans in one direction to retard the feeding movement of said means.

10. In a heel compressing machine, the combination of a feed slide,compression members relatively movable toward and from each other, meansfor moving the feed slide to place a heel between the compressionmembers during their movement of separation, and a retarding devicearranged to operate during the movement of the feed slide in onedirection and be inoperative during its movement in the other direction.

In testimony whereof I have signed my name to this specification.

THOMAS LUND.

and means actuated by move-

